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The Massachusetts Emergency Medical Service Stroke Quality Improvement Collaborative, 2009–2012

ActionQuarterAverage Percent Change in Range of Modeled Values, Baseline to Quarter 12
Baseline (Q1-Q2)3456789101112
Blood glucose tested91.296.295.597.396.594.696.598.298.898.897.393.2–98.9
Time-last- well-known documented79.494.589.594.694.193.991.990.193.393.998.686.1–97.1
Time of symptom discovery documented82.495.188.494.696.196.294.696.694.595.899.487.2–99.3
Stroke prenotification to hospital69.171.771.879.977.169.373.683.085.687.393.666.6–88.0
Stroke screening performed93.897.–97.5

Performance measures adherence and average percentage change over time, Massachusetts Emergency Medical Service Stroke Quality Improvement project, July 2009–June 2012. Asterisks indicate measures with significant changes from baseline. Abbreviation: APC, average percentage change.

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